US4224947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suturing apparatus
Assignee: Individual
•
Filing: 1979-02-05
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Granted: 1980-09-30
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Expires: 1999-02-05
Abstract
Abstract An improved suturing apparatus for non-continuous suturing of ruptured or incised skin. Suturing thread is held in an enclosed reel and fed through tubing into a hollow suturing needle. The suturing thread exits the hollow suturing needle through an aperture proximate to the tip of the hollow suturing needle. Needle-holding forceps hold the hollow suturing needle and assist in forcing the needle tip through the tissue to be sewn. Regulable feed means for moving the thread, such as compressed gas, is introduced into the enclosed reel, tubing or hollow suturing needle. The compressed gas moves toward the lower pressure area created by the aperture in the hollow suturing needle, also pushing and carrying the suturing thread out the aperture. The needle tip is pulled back out of the tissue, leaving the extended thread in the tissue. A sharp edge on the needle aperture is used to cut the suturing thread.
Inventors
- 👤 Mamoru Fukuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:05
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/0491; A61B17/06066; A61B17/06166; A61B2017/06052
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A suturing tool comprising: (a) a hollow needle having a sharp tip and a blunt end, said needle including an exit aperture proximate said tip; (b) reel means for holding a quantity of thread for feeding through said hollow needle; (c) feed means for actuating said reel means for advancing thread through said needle; (d) flexible passage means connecting said needle to said reel means providing a passage for advancing the thread through said needle; (e) handle means for rewinding excess thread advanced by said reel means; and (f) forceps means for manipulating said needle for suturing ruptured or incised tissue.
Claim 2
Dependent Claim
101 words
A suturing tool comprising: (a) a hollow needle having a sharp tip and a blunt end, said needle including an exit aperture proximate said tip; (b) reel means for holding a quantity of thread for feeding through said hollow needle; (c) feed means for actuating said reel means for advancing thread through said needle; (d) flexible passage means connecting said needle to said reel means providing a passage for advancing the thread through said needle; (e) handle means for rewinding excess thread advanced by said reel means; and (f) forceps means for manipulating said needle for suturing ruptured or incised tissue.
Claim 3
Dependent Claim
33 words
A suturing tool in accordance with claim 1, wherein one side of said exit aperture is sharpened for cutting off the thread exiting therefrom with the application of side pressure on said needle.
Claim 4
Dependent Claim
42 words
A suturing tool in accordance with claim 1, wherein said feed means includes a compression chamber encasing said reel means and a valve, the opening of said valve causing compressed gas within said chamber to exert an advancing pressure on said thread.
Claim 5
Dependent Claim
17 words
A suturing tool in accordance with claim 3, wherein said compressed gas is nitrogen or other gasses.
Claim 6
Dependent Claim
45 words
A suturing tool in accordance with claim 3 wherein said forceps means includes two gripping arms pivotally connected adjacent one end and spaced by spring means at the other end and wherein said feed means and said reel means are secured to said gripping arms.
Claim 7
Dependent Claim
56 words
A suturing tool in accordance with claim 5 wherein said forceps means includes a channel extending through one of said gripping arms in fluid communication with said needle and said feed means, said channel terminating in an aperture in said one gripping arm mating with a needle aperture provided in the blunt end of said needle.
Claim 8
Dependent Claim
28 words
A suturing tool in accordance with claim 6 wherein said one gripping arm includes valve means for regulating the release of said compressed gas from said compression chamber.
Claim 9
Dependent Claim
22 words
A suturing tool in accordance with claim 7 wherein said compression chamber is a gas cartridge connected to said one gripping arm.
Claim 10
Dependent Claim
64 words
A suturing tool in accordance with claim 1, wherein said feed means includes a compression chamber apart from said reel means, said chamber having a release valve, thread leaving said reel means passing through a common conduit connected to the downstream side of said valve, the opening of said valve causing compressed gas within said chamber to exert an advancing pressure on said thread.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |